NGC 1569: A dwarf galaxy approximately
7 million light years from Earth.
Caption: Chandra's 27-hour
observation of this dwarf galaxy allowed scientists to measure
for the first time the concentration of oxygen, neon, magnesium,
and silicon that are present in the disk of the galaxy and in
large hot gaseous bubbles that extend above and below the disk.
These bubbles, produced by a burst of supernova events, are
rushing out of the galaxy at speeds of hundreds of thousands of
miles per hour. They contain oxygen equal to the oxygen
contained in 3 million suns.
Scale: Image is 5.2 arcmin on a
Chandra X-ray Observatory ACIS
CXC operated for
NASA by the Smithsonian Astrophysical